Set Up CHAP for iSCSI Adapter in the vSphere Client

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You can set up all targets to receive the same CHAP name and secret from the iSCSI initiator at the initiator level. By default, all discovery addresses or static targets inherit CHAP parameters that you set up at the initiator level.

About this task

The CHAP name should not exceed 511 alphanumeric characters and the CHAP secret should not exceed 255 alphanumeric characters. Some adapters, for example the QLogic adapter, might have lower limits, 255 for the CHAP name and 100 for the CHAP secret.

Prerequisites

Launch the vSphere Client and log in to a vCenter Server system.

Before setting up CHAP parameters for software or dependent hardware iSCSI, determine whether to configure one-way or mutual CHAP. Independent hardware iSCSI adapters do not support mutual CHAP.

In one-way CHAP, the target authenticates the initiator.

In mutual CHAP, both the target and the initiator authenticate each other. Use different secrets for CHAP and mutual CHAP.

When you configure CHAP parameters, verify that they match the parameters on the storage side.